Photo Gallery

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Leptogenys distinguenda Gallery

 

 

800 x 600

Raiding workers attacking prey in a field experiment. A piece of raw beef fixed on a cord was brought aside a raid swarm. This experiment illustrates how efficient recruitment communication in L. distinguenda is. The direction of advance of the entire raidswarm could be manipulated experimentally by repeated shifts of the prey object.

 

800 x 600

Workers feeding on prey (raw beef). This gives an impression about the numbers in which army ants appear. Large prey objects are collectively cut down into small pieces and retrieved singly. Workers are able to form chains of more than ten individuals around the booty by attaching their mandibels on the legs of nestmates so that the strength of numerous ants sum up and the booty is torn into pieces.

 

800 x 600

Emigration column. Workers carrying pupae and larvae follow a pheromone trail (originating from the pygidial gland) leading to a new nestsite.

 

800 x 600

Bioassay. An intersecting, s-shaped, artificial trail system in a natural ant trail. The ants clearly follow the artificial trail made of pygidial gland extract while the control trail is not followed.

 

800 x 600

A lepismatid myrmecophile. This guest is able to perceive the trail pheromone of its host ant and of following an emigration column.

 

800 x 600

A myrmecophilic mollusk. The newly discovered snail Allopeas myrmekophilos is carried by emigrating workers to new nestsites. This is the first mollusk observed as an ant guest. It produces a secretion which is exclusively attractive to its host ant.

 

Paratrechina longicornis Gallery (these pics are from the net)

 

 

100 x 45

P. longicornis drawing.

 

400 x 256

P. longicornis from the top with filled gaster.

 

412 x 392

P. longicornis from the top. Note the extremly long antennae.